./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 490e43bb8ca19cea87b27390f3d2ab0cf6fc9da6355c682d1c6272a9c3d813c1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:41:55,544 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:41:55,668 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:41:55,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:41:55,682 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:41:55,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:41:55,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:41:55,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:41:55,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:41:55,729 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:41:55,730 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:41:55,731 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:41:55,731 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:41:55,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:41:55,734 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:41:55,734 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:41:55,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:41:55,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:41:55,735 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:41:55,736 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:41:55,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:41:55,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:41:55,737 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:41:55,738 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:41:55,738 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:41:55,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:41:55,739 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:41:55,740 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:41:55,741 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:41:55,741 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:41:55,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:41:55,743 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:41:55,743 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:41:55,743 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:41:55,744 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:41:55,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:41:55,744 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:41:55,744 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:41:55,745 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:41:55,745 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:41:55,745 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:41:55,746 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 490e43bb8ca19cea87b27390f3d2ab0cf6fc9da6355c682d1c6272a9c3d813c1 [2023-11-19 07:41:56,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:41:56,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:41:56,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:41:56,055 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:41:56,055 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:41:56,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race.i [2023-11-19 07:41:59,231 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:41:59,478 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:41:59,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race.i [2023-11-19 07:41:59,494 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/bin/uautomizer-verify-uCwYo4JHxu/data/b86f53754/67f2e15c01c54c6bbb25b32fa3136198/FLAG1568e2bd7 [2023-11-19 07:41:59,510 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/bin/uautomizer-verify-uCwYo4JHxu/data/b86f53754/67f2e15c01c54c6bbb25b32fa3136198 [2023-11-19 07:41:59,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:41:59,514 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:41:59,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:59,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:41:59,521 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:41:59,522 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:59" (1/1) ... [2023-11-19 07:41:59,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c373a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:59, skipping insertion in model container [2023-11-19 07:41:59,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:59" (1/1) ... [2023-11-19 07:41:59,567 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:41:59,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:00,013 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:42:00,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:00,102 WARN L675 CHandler]: The function pthread_detach is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:42:00,109 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:42:00,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:00 WrapperNode [2023-11-19 07:42:00,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:00,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:00,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:42:00,112 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:42:00,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:00" (1/1) ... [2023-11-19 07:42:00,133 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:00" (1/1) ... [2023-11-19 07:42:00,158 INFO L138 Inliner]: procedures = 159, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2023-11-19 07:42:00,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:00,159 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:42:00,159 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:42:00,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:42:00,169 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:00" (1/1) ... [2023-11-19 07:42:00,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:00" (1/1) ... [2023-11-19 07:42:00,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:00" (1/1) ... [2023-11-19 07:42:00,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:00" (1/1) ... [2023-11-19 07:42:00,183 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:00" (1/1) ... [2023-11-19 07:42:00,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:00" (1/1) ... [2023-11-19 07:42:00,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:00" (1/1) ... [2023-11-19 07:42:00,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:00" (1/1) ... [2023-11-19 07:42:00,194 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:42:00,195 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:42:00,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:42:00,196 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:42:00,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:00" (1/1) ... [2023-11-19 07:42:00,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:00,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:00,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:00,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86482620-8213-48b9-a573-4a4df99131b1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:42:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:42:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:42:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:42:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:42:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:42:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:42:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_detach [2023-11-19 07:42:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:42:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-19 07:42:00,276 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-19 07:42:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:42:00,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:42:00,278 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:42:00,416 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:42:00,418 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:42:00,688 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:42:00,699 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:42:00,699 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:42:00,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:00 BoogieIcfgContainer [2023-11-19 07:42:00,703 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:42:00,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:42:00,715 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:42:00,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:42:00,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:41:59" (1/3) ... [2023-11-19 07:42:00,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1c278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:00, skipping insertion in model container [2023-11-19 07:42:00,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:00" (2/3) ... [2023-11-19 07:42:00,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1c278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:00, skipping insertion in model container [2023-11-19 07:42:00,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:00" (3/3) ... [2023-11-19 07:42:00,725 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-counter-inner-race.i [2023-11-19 07:42:00,734 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:42:00,747 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:42:00,747 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-19 07:42:00,747 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:42:00,848 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:42:00,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 139 transitions, 282 flow [2023-11-19 07:42:00,970 INFO L124 PetriNetUnfolderBase]: 13/175 cut-off events. [2023-11-19 07:42:00,970 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:42:00,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 175 events. 13/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 325 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 103. Up to 4 conditions per place. [2023-11-19 07:42:00,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 139 transitions, 282 flow [2023-11-19 07:42:00,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 139 transitions, 282 flow [2023-11-19 07:42:00,993 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:42:01,012 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 139 transitions, 282 flow [2023-11-19 07:42:01,018 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 139 transitions, 282 flow [2023-11-19 07:42:01,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 139 transitions, 282 flow [2023-11-19 07:42:01,073 INFO L124 PetriNetUnfolderBase]: 13/175 cut-off events. [2023-11-19 07:42:01,074 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:42:01,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 175 events. 13/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 325 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 103. Up to 4 conditions per place. [2023-11-19 07:42:01,085 INFO L119 LiptonReduction]: Number of co-enabled transitions 5390 [2023-11-19 07:42:04,237 INFO L134 LiptonReduction]: Checked pairs total: 24043 [2023-11-19 07:42:04,239 INFO L136 LiptonReduction]: Total number of compositions: 91 [2023-11-19 07:42:04,263 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:42:04,272 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7890e3a3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:42:04,272 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-19 07:42:04,277 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:42:04,277 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 07:42:04,277 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:42:04,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:42:04,278 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:42:04,279 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 07:42:04,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:04,285 INFO L85 PathProgramCache]: Analyzing trace with hash 15006211, now seen corresponding path program 1 times [2023-11-19 07:42:04,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:04,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186330943] [2023-11-19 07:42:04,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:04,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:04,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:04,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:04,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186330943] [2023-11-19 07:42:04,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186330943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:04,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:04,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:42:04,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510242722] [2023-11-19 07:42:04,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:04,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:04,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:04,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:04,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:04,697 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 230 [2023-11-19 07:42:04,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 59 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:04,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:42:04,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 230 [2023-11-19 07:42:04,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:42:04,982 INFO L124 PetriNetUnfolderBase]: 282/830 cut-off events. [2023-11-19 07:42:04,983 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:42:04,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1389 conditions, 830 events. 282/830 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5092 event pairs, 76 based on Foata normal form. 22/742 useless extension candidates. Maximal degree in co-relation 1347. Up to 328 conditions per place. [2023-11-19 07:42:05,001 INFO L140 encePairwiseOnDemand]: 214/230 looper letters, 43 selfloop transitions, 8 changer transitions 0/74 dead transitions. [2023-11-19 07:42:05,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 74 transitions, 254 flow [2023-11-19 07:42:05,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:05,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:42:05,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 420 transitions. [2023-11-19 07:42:05,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131 [2023-11-19 07:42:05,029 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 420 transitions. [2023-11-19 07:42:05,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 420 transitions. [2023-11-19 07:42:05,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:42:05,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 420 transitions. [2023-11-19 07:42:05,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:05,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 230.0) internal successors, (920), 4 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:05,053 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 230.0) internal successors, (920), 4 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:05,055 INFO L175 Difference]: Start difference. First operand has 56 places, 59 transitions, 122 flow. Second operand 3 states and 420 transitions. [2023-11-19 07:42:05,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 74 transitions, 254 flow [2023-11-19 07:42:05,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 74 transitions, 254 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:42:05,063 INFO L231 Difference]: Finished difference. Result has 57 places, 59 transitions, 170 flow [2023-11-19 07:42:05,066 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=57, PETRI_TRANSITIONS=59} [2023-11-19 07:42:05,070 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places. [2023-11-19 07:42:05,071 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 59 transitions, 170 flow [2023-11-19 07:42:05,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:05,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:42:05,072 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 07:42:05,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:42:05,073 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 07:42:05,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:05,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1569459582, now seen corresponding path program 1 times [2023-11-19 07:42:05,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:05,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114091540] [2023-11-19 07:42:05,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:05,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:05,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:42:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:05,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:42:05,233 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:42:05,235 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2023-11-19 07:42:05,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2023-11-19 07:42:05,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2023-11-19 07:42:05,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2023-11-19 07:42:05,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2023-11-19 07:42:05,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2023-11-19 07:42:05,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2023-11-19 07:42:05,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2023-11-19 07:42:05,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2023-11-19 07:42:05,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2023-11-19 07:42:05,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2023-11-19 07:42:05,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2023-11-19 07:42:05,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2023-11-19 07:42:05,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2023-11-19 07:42:05,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2023-11-19 07:42:05,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2023-11-19 07:42:05,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2023-11-19 07:42:05,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2023-11-19 07:42:05,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:42:05,243 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:42:05,246 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:42:05,246 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:42:05,280 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:42:05,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 189 transitions, 388 flow [2023-11-19 07:42:05,336 INFO L124 PetriNetUnfolderBase]: 20/279 cut-off events. [2023-11-19 07:42:05,337 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:42:05,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 279 events. 20/279 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 634 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 176. Up to 6 conditions per place. [2023-11-19 07:42:05,340 INFO L82 GeneralOperation]: Start removeDead. Operand has 184 places, 189 transitions, 388 flow [2023-11-19 07:42:05,344 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 184 places, 189 transitions, 388 flow [2023-11-19 07:42:05,344 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:42:05,344 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 189 transitions, 388 flow [2023-11-19 07:42:05,345 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 189 transitions, 388 flow [2023-11-19 07:42:05,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 189 transitions, 388 flow [2023-11-19 07:42:05,391 INFO L124 PetriNetUnfolderBase]: 20/279 cut-off events. [2023-11-19 07:42:05,391 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:42:05,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 279 events. 20/279 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 634 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 176. Up to 6 conditions per place. [2023-11-19 07:42:05,407 INFO L119 LiptonReduction]: Number of co-enabled transitions 15680 [2023-11-19 07:42:08,030 INFO L134 LiptonReduction]: Checked pairs total: 83665 [2023-11-19 07:42:08,030 INFO L136 LiptonReduction]: Total number of compositions: 108 [2023-11-19 07:42:08,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:42:08,034 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7890e3a3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:42:08,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-19 07:42:08,036 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:42:08,037 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 07:42:08,037 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:42:08,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:42:08,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:42:08,038 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-19 07:42:08,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:08,038 INFO L85 PathProgramCache]: Analyzing trace with hash 25680349, now seen corresponding path program 1 times [2023-11-19 07:42:08,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:08,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349929973] [2023-11-19 07:42:08,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:08,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:08,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:08,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:08,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349929973] [2023-11-19 07:42:08,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349929973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:08,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:08,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:42:08,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332146156] [2023-11-19 07:42:08,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:08,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:08,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:08,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:08,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:08,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 297 [2023-11-19 07:42:08,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 95 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:08,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:42:08,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 297 [2023-11-19 07:42:08,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:42:11,042 INFO L124 PetriNetUnfolderBase]: 12085/24625 cut-off events. [2023-11-19 07:42:11,043 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-19 07:42:11,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42938 conditions, 24625 events. 12085/24625 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 771. Compared 234762 event pairs, 4038 based on Foata normal form. 830/22277 useless extension candidates. Maximal degree in co-relation 22423. Up to 10060 conditions per place. [2023-11-19 07:42:11,337 INFO L140 encePairwiseOnDemand]: 270/297 looper letters, 76 selfloop transitions, 16 changer transitions 0/132 dead transitions. [2023-11-19 07:42:11,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 132 transitions, 463 flow [2023-11-19 07:42:11,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:11,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:42:11,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 585 transitions. [2023-11-19 07:42:11,341 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6565656565656566 [2023-11-19 07:42:11,341 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 585 transitions. [2023-11-19 07:42:11,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 585 transitions. [2023-11-19 07:42:11,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:42:11,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 585 transitions. [2023-11-19 07:42:11,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:11,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:11,351 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:11,351 INFO L175 Difference]: Start difference. First operand has 92 places, 95 transitions, 200 flow. Second operand 3 states and 585 transitions. [2023-11-19 07:42:11,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 132 transitions, 463 flow [2023-11-19 07:42:11,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 132 transitions, 463 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:42:11,359 INFO L231 Difference]: Finished difference. Result has 95 places, 106 transitions, 330 flow [2023-11-19 07:42:11,360 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=95, PETRI_TRANSITIONS=106} [2023-11-19 07:42:11,361 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 3 predicate places. [2023-11-19 07:42:11,361 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 106 transitions, 330 flow [2023-11-19 07:42:11,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:11,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:42:11,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:11,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:42:11,365 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-19 07:42:11,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:11,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1084150279, now seen corresponding path program 1 times [2023-11-19 07:42:11,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:11,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275178670] [2023-11-19 07:42:11,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:11,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:11,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:11,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:11,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275178670] [2023-11-19 07:42:11,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275178670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:11,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:11,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:42:11,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481550671] [2023-11-19 07:42:11,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:11,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:11,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:11,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:11,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:11,486 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 297 [2023-11-19 07:42:11,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 106 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:11,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:42:11,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 297 [2023-11-19 07:42:11,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:42:14,211 INFO L124 PetriNetUnfolderBase]: 9636/21797 cut-off events. [2023-11-19 07:42:14,211 INFO L125 PetriNetUnfolderBase]: For 4582/4902 co-relation queries the response was YES. [2023-11-19 07:42:14,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41957 conditions, 21797 events. 9636/21797 cut-off events. For 4582/4902 co-relation queries the response was YES. Maximal size of possible extension queue 820. Compared 224466 event pairs, 5935 based on Foata normal form. 35/18887 useless extension candidates. Maximal degree in co-relation 15674. Up to 12242 conditions per place. [2023-11-19 07:42:14,415 INFO L140 encePairwiseOnDemand]: 292/297 looper letters, 65 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2023-11-19 07:42:14,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 135 transitions, 550 flow [2023-11-19 07:42:14,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:14,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:42:14,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 578 transitions. [2023-11-19 07:42:14,420 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6487093153759821 [2023-11-19 07:42:14,420 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 578 transitions. [2023-11-19 07:42:14,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 578 transitions. [2023-11-19 07:42:14,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:42:14,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 578 transitions. [2023-11-19 07:42:14,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:14,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:14,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:14,429 INFO L175 Difference]: Start difference. First operand has 95 places, 106 transitions, 330 flow. Second operand 3 states and 578 transitions. [2023-11-19 07:42:14,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 135 transitions, 550 flow [2023-11-19 07:42:14,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 135 transitions, 510 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:42:14,466 INFO L231 Difference]: Finished difference. Result has 96 places, 109 transitions, 324 flow [2023-11-19 07:42:14,467 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=96, PETRI_TRANSITIONS=109} [2023-11-19 07:42:14,470 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 4 predicate places. [2023-11-19 07:42:14,470 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 109 transitions, 324 flow [2023-11-19 07:42:14,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:14,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:42:14,473 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:14,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:42:14,473 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-19 07:42:14,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:14,474 INFO L85 PathProgramCache]: Analyzing trace with hash -933638472, now seen corresponding path program 1 times [2023-11-19 07:42:14,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:14,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783290519] [2023-11-19 07:42:14,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:14,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:14,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:14,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:14,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783290519] [2023-11-19 07:42:14,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783290519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:14,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:14,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:42:14,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123384639] [2023-11-19 07:42:14,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:14,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:14,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:14,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:14,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:14,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 297 [2023-11-19 07:42:14,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 109 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:14,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:42:14,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 297 [2023-11-19 07:42:14,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:42:14,820 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 38#L692true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-19 07:42:14,820 INFO L294 olderBase$Statistics]: this new event has 22 ancestors and is cut-off event [2023-11-19 07:42:14,821 INFO L297 olderBase$Statistics]: existing Event has 19 ancestors and is cut-off event [2023-11-19 07:42:14,821 INFO L297 olderBase$Statistics]: existing Event has 22 ancestors and is cut-off event [2023-11-19 07:42:14,821 INFO L297 olderBase$Statistics]: existing Event has 19 ancestors and is cut-off event [2023-11-19 07:42:14,830 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [60#L693-4true, Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 122#L691-2true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-19 07:42:14,830 INFO L294 olderBase$Statistics]: this new event has 23 ancestors and is cut-off event [2023-11-19 07:42:14,830 INFO L297 olderBase$Statistics]: existing Event has 20 ancestors and is cut-off event [2023-11-19 07:42:14,830 INFO L297 olderBase$Statistics]: existing Event has 20 ancestors and is cut-off event [2023-11-19 07:42:14,831 INFO L297 olderBase$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-11-19 07:42:14,900 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [60#L693-4true, Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-19 07:42:14,900 INFO L294 olderBase$Statistics]: this new event has 23 ancestors and is cut-off event [2023-11-19 07:42:14,901 INFO L297 olderBase$Statistics]: existing Event has 20 ancestors and is cut-off event [2023-11-19 07:42:14,901 INFO L297 olderBase$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-11-19 07:42:14,901 INFO L297 olderBase$Statistics]: existing Event has 20 ancestors and is cut-off event [2023-11-19 07:42:14,901 INFO L297 olderBase$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-11-19 07:42:15,144 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 179#L696true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 122#L691-2true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-19 07:42:15,145 INFO L294 olderBase$Statistics]: this new event has 28 ancestors and is cut-off event [2023-11-19 07:42:15,145 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-19 07:42:15,145 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-19 07:42:15,145 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-19 07:42:15,194 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 115#L696-3true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 122#L691-2true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-19 07:42:15,194 INFO L294 olderBase$Statistics]: this new event has 29 ancestors and is cut-off event [2023-11-19 07:42:15,194 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-19 07:42:15,194 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-19 07:42:15,195 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-19 07:42:15,234 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 179#L696true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-19 07:42:15,234 INFO L294 olderBase$Statistics]: this new event has 28 ancestors and is cut-off event [2023-11-19 07:42:15,234 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-19 07:42:15,234 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-19 07:42:15,234 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-19 07:42:15,235 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-19 07:42:15,235 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 115#L696-3true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-19 07:42:15,235 INFO L294 olderBase$Statistics]: this new event has 29 ancestors and is cut-off event [2023-11-19 07:42:15,235 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-19 07:42:15,235 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-19 07:42:15,235 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-19 07:42:15,235 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-19 07:42:15,249 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 59#L696-5true, 122#L691-2true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-19 07:42:15,249 INFO L294 olderBase$Statistics]: this new event has 30 ancestors and is cut-off event [2023-11-19 07:42:15,249 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-19 07:42:15,249 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-19 07:42:15,249 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-19 07:42:15,252 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 59#L696-5true, threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-19 07:42:15,252 INFO L294 olderBase$Statistics]: this new event has 30 ancestors and is cut-off event [2023-11-19 07:42:15,252 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-19 07:42:15,252 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-19 07:42:15,252 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-19 07:42:15,252 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-19 07:42:15,308 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 122#L691-2true, threadThread1of2ForFork0InUse, 21#L696-7true, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-19 07:42:15,308 INFO L294 olderBase$Statistics]: this new event has 31 ancestors and is cut-off event [2023-11-19 07:42:15,308 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-19 07:42:15,308 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-19 07:42:15,308 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-19 07:42:15,312 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 21#L696-7true, 98#L712-1true, 198#true]) [2023-11-19 07:42:15,312 INFO L294 olderBase$Statistics]: this new event has 31 ancestors and is cut-off event [2023-11-19 07:42:15,312 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-19 07:42:15,312 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-19 07:42:15,313 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-19 07:42:15,313 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-19 07:42:15,344 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [60#L693-4true, Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 198#true, 152#L716-1true]) [2023-11-19 07:42:15,345 INFO L294 olderBase$Statistics]: this new event has 31 ancestors and is cut-off event [2023-11-19 07:42:15,345 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-19 07:42:15,345 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-19 07:42:15,345 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-19 07:42:15,386 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 122#L691-2true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true, 155#L698true]) [2023-11-19 07:42:15,386 INFO L294 olderBase$Statistics]: this new event has 32 ancestors and is cut-off event [2023-11-19 07:42:15,386 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-19 07:42:15,387 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-19 07:42:15,387 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-19 07:42:15,393 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true, 155#L698true]) [2023-11-19 07:42:15,394 INFO L294 olderBase$Statistics]: this new event has 32 ancestors and is cut-off event [2023-11-19 07:42:15,394 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-19 07:42:15,394 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-19 07:42:15,394 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-19 07:42:15,394 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-19 07:42:15,714 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([619] L701-->L701-1: Formula: (= |v_#race~threads_alive~0_10| 0) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_10|} AuxVars[] AssignedVars[#race~threads_alive~0][93], [Black: 187#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, threadThread1of2ForFork0InUse, 39#L701-1true, 122#L691-2true, threadThread2of2ForFork0InUse, 198#true, 152#L716-1true]) [2023-11-19 07:42:15,715 INFO L294 olderBase$Statistics]: this new event has 33 ancestors and is cut-off event [2023-11-19 07:42:15,715 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-19 07:42:15,715 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-19 07:42:15,715 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-19 07:42:15,794 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([619] L701-->L701-1: Formula: (= |v_#race~threads_alive~0_10| 0) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_10|} AuxVars[] AssignedVars[#race~threads_alive~0][93], [Black: 187#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, threadThread1of2ForFork0InUse, 39#L701-1true, 122#L691-2true, threadThread2of2ForFork0InUse, 135#L716-2true, 198#true]) [2023-11-19 07:42:15,794 INFO L294 olderBase$Statistics]: this new event has 34 ancestors and is cut-off event [2023-11-19 07:42:15,795 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:42:15,795 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:42:15,795 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:42:15,796 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, 179#L696true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 198#true, 152#L716-1true]) [2023-11-19 07:42:15,796 INFO L294 olderBase$Statistics]: this new event has 33 ancestors and is not cut-off event [2023-11-19 07:42:15,796 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is not cut-off event [2023-11-19 07:42:15,796 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is not cut-off event [2023-11-19 07:42:15,797 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is not cut-off event [2023-11-19 07:42:15,805 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, 115#L696-3true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 198#true, 152#L716-1true]) [2023-11-19 07:42:15,806 INFO L294 olderBase$Statistics]: this new event has 37 ancestors and is cut-off event [2023-11-19 07:42:15,806 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:42:15,806 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:42:15,806 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:42:15,901 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, 59#L696-5true, threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 198#true, 152#L716-1true]) [2023-11-19 07:42:15,901 INFO L294 olderBase$Statistics]: this new event has 38 ancestors and is cut-off event [2023-11-19 07:42:15,901 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-19 07:42:15,901 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-19 07:42:15,902 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-19 07:42:15,988 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 21#L696-7true, 198#true, 152#L716-1true]) [2023-11-19 07:42:15,989 INFO L294 olderBase$Statistics]: this new event has 39 ancestors and is cut-off event [2023-11-19 07:42:15,989 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-11-19 07:42:15,989 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-11-19 07:42:15,989 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-11-19 07:42:16,070 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 198#true, 152#L716-1true, 155#L698true]) [2023-11-19 07:42:16,070 INFO L294 olderBase$Statistics]: this new event has 40 ancestors and is cut-off event [2023-11-19 07:42:16,070 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-11-19 07:42:16,070 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-11-19 07:42:16,070 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-11-19 07:42:16,408 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [38#L692true, Black: 187#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 133#L701-2true, 198#true, 152#L716-1true]) [2023-11-19 07:42:16,409 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is cut-off event [2023-11-19 07:42:16,409 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-11-19 07:42:16,409 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-11-19 07:42:16,409 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-11-19 07:42:16,470 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [60#L693-4true, Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 133#L701-2true, 198#true, 152#L716-1true]) [2023-11-19 07:42:16,471 INFO L294 olderBase$Statistics]: this new event has 42 ancestors and is cut-off event [2023-11-19 07:42:16,471 INFO L297 olderBase$Statistics]: existing Event has 42 ancestors and is cut-off event [2023-11-19 07:42:16,471 INFO L297 olderBase$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-11-19 07:42:16,471 INFO L297 olderBase$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-11-19 07:42:16,716 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, 179#L696true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 198#true, 133#L701-2true, 152#L716-1true]) [2023-11-19 07:42:16,717 INFO L294 olderBase$Statistics]: this new event has 47 ancestors and is cut-off event [2023-11-19 07:42:16,717 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:42:16,717 INFO L297 olderBase$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-11-19 07:42:16,717 INFO L297 olderBase$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-11-19 07:42:16,719 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, 115#L696-3true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 133#L701-2true, 198#true, 152#L716-1true]) [2023-11-19 07:42:16,719 INFO L294 olderBase$Statistics]: this new event has 45 ancestors and is not cut-off event [2023-11-19 07:42:16,720 INFO L297 olderBase$Statistics]: existing Event has 45 ancestors and is not cut-off event [2023-11-19 07:42:16,720 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is not cut-off event [2023-11-19 07:42:16,720 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is not cut-off event [2023-11-19 07:42:16,734 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, 193#true, 59#L696-5true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 133#L701-2true, 198#true, 152#L716-1true]) [2023-11-19 07:42:16,734 INFO L294 olderBase$Statistics]: this new event has 49 ancestors and is cut-off event [2023-11-19 07:42:16,734 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-11-19 07:42:16,734 INFO L297 olderBase$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-11-19 07:42:16,734 INFO L297 olderBase$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-11-19 07:42:16,797 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 21#L696-7true, 133#L701-2true, 198#true, 152#L716-1true]) [2023-11-19 07:42:16,797 INFO L294 olderBase$Statistics]: this new event has 50 ancestors and is cut-off event [2023-11-19 07:42:16,797 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-19 07:42:16,797 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:42:16,798 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:42:16,834 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 198#true, 133#L701-2true, 152#L716-1true, 155#L698true]) [2023-11-19 07:42:16,834 INFO L294 olderBase$Statistics]: this new event has 51 ancestors and is cut-off event [2023-11-19 07:42:16,834 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-11-19 07:42:16,834 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-19 07:42:16,835 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-11-19 07:42:17,071 INFO L124 PetriNetUnfolderBase]: 11505/24511 cut-off events. [2023-11-19 07:42:17,071 INFO L125 PetriNetUnfolderBase]: For 5917/7860 co-relation queries the response was YES. [2023-11-19 07:42:17,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50113 conditions, 24511 events. 11505/24511 cut-off events. For 5917/7860 co-relation queries the response was YES. Maximal size of possible extension queue 859. Compared 243997 event pairs, 6261 based on Foata normal form. 575/21585 useless extension candidates. Maximal degree in co-relation 32017. Up to 15685 conditions per place. [2023-11-19 07:42:17,244 INFO L140 encePairwiseOnDemand]: 288/297 looper letters, 65 selfloop transitions, 15 changer transitions 0/139 dead transitions. [2023-11-19 07:42:17,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 139 transitions, 578 flow [2023-11-19 07:42:17,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:17,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:42:17,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 564 transitions. [2023-11-19 07:42:17,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.632996632996633 [2023-11-19 07:42:17,248 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 564 transitions. [2023-11-19 07:42:17,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 564 transitions. [2023-11-19 07:42:17,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:42:17,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 564 transitions. [2023-11-19 07:42:17,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:17,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:17,255 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:17,255 INFO L175 Difference]: Start difference. First operand has 96 places, 109 transitions, 324 flow. Second operand 3 states and 564 transitions. [2023-11-19 07:42:17,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 139 transitions, 578 flow [2023-11-19 07:42:17,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 139 transitions, 573 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:42:17,267 INFO L231 Difference]: Finished difference. Result has 98 places, 122 transitions, 443 flow [2023-11-19 07:42:17,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=443, PETRI_PLACES=98, PETRI_TRANSITIONS=122} [2023-11-19 07:42:17,270 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 6 predicate places. [2023-11-19 07:42:17,270 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 122 transitions, 443 flow [2023-11-19 07:42:17,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:17,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:42:17,271 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-19 07:42:17,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:42:17,272 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-19 07:42:17,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:17,272 INFO L85 PathProgramCache]: Analyzing trace with hash 572228891, now seen corresponding path program 1 times [2023-11-19 07:42:17,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:17,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244986318] [2023-11-19 07:42:17,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:17,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:17,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:42:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:17,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:42:17,353 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:42:17,354 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2023-11-19 07:42:17,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-11-19 07:42:17,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-11-19 07:42:17,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-11-19 07:42:17,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-11-19 07:42:17,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2023-11-19 07:42:17,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-11-19 07:42:17,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-11-19 07:42:17,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2023-11-19 07:42:17,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-11-19 07:42:17,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2023-11-19 07:42:17,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2023-11-19 07:42:17,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-11-19 07:42:17,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-11-19 07:42:17,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2023-11-19 07:42:17,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2023-11-19 07:42:17,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2023-11-19 07:42:17,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-11-19 07:42:17,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2023-11-19 07:42:17,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-11-19 07:42:17,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-11-19 07:42:17,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-11-19 07:42:17,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-11-19 07:42:17,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2023-11-19 07:42:17,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:42:17,361 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 07:42:17,362 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:42:17,362 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-19 07:42:17,413 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:42:17,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 239 transitions, 496 flow [2023-11-19 07:42:17,517 INFO L124 PetriNetUnfolderBase]: 27/383 cut-off events. [2023-11-19 07:42:17,518 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-19 07:42:17,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 383 events. 27/383 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 963 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 283. Up to 8 conditions per place. [2023-11-19 07:42:17,521 INFO L82 GeneralOperation]: Start removeDead. Operand has 234 places, 239 transitions, 496 flow [2023-11-19 07:42:17,530 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 234 places, 239 transitions, 496 flow [2023-11-19 07:42:17,530 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:42:17,531 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 239 transitions, 496 flow [2023-11-19 07:42:17,532 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 239 transitions, 496 flow [2023-11-19 07:42:17,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 239 transitions, 496 flow [2023-11-19 07:42:17,607 INFO L124 PetriNetUnfolderBase]: 27/383 cut-off events. [2023-11-19 07:42:17,607 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-19 07:42:17,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 383 events. 27/383 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 963 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 283. Up to 8 conditions per place. [2023-11-19 07:42:17,638 INFO L119 LiptonReduction]: Number of co-enabled transitions 30870 [2023-11-19 07:42:21,045 INFO L134 LiptonReduction]: Checked pairs total: 152151 [2023-11-19 07:42:21,046 INFO L136 LiptonReduction]: Total number of compositions: 122 [2023-11-19 07:42:21,049 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:42:21,050 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7890e3a3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:42:21,050 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-19 07:42:21,052 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:42:21,053 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 07:42:21,053 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:42:21,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:42:21,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:42:21,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-19 07:42:21,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:21,054 INFO L85 PathProgramCache]: Analyzing trace with hash 38330525, now seen corresponding path program 1 times [2023-11-19 07:42:21,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:21,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180064772] [2023-11-19 07:42:21,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:21,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:21,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:21,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:21,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180064772] [2023-11-19 07:42:21,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180064772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:21,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:21,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:42:21,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687440554] [2023-11-19 07:42:21,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:21,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:21,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:21,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:21,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:21,150 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 361 [2023-11-19 07:42:21,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 128 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:21,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:42:21,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 361 [2023-11-19 07:42:21,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand